/* 
 * Enterprise Library Extensions - DI + ORM.
 * Copyright (C) 2006
 *
 * GNU General Public License
 *
 * This program is free software; you can redistribute 
 * it and/or modify it under the terms of the GNU General Public License 
 * as published by the Free Software Foundation; either version 2 of the 
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
 * See the GNU General Public License for more details.
 */
using System;
using System.Data;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
using ELE.EnterpriseLibrary.Data;

namespace ELE.EnterpriseLibrary.Data.Oracle
{
  /// <summary>
  /// Oracle specific parser.
  /// </summary>
  public class OracleSqlParser : GenericSqlParser
  {
    /// <summary>
    /// 
    /// </summary>
    public OracleSqlParser() { }

    #region ISqlParser Members
    /// <summary>
    /// See <see cref="ISqlParser.GetInputParameterNames"/>
    /// </summary>
    /// <param name="sqlText"></param>
    /// <returns></returns>
    public override List<string> GetInputParameterNames(string sqlText)
    {
      List<string> retVal = new List<string>();
      Regex regex = new Regex(@"\s*:\w*\s*");
      foreach (Match m in regex.Matches(sqlText))
      {
        retVal.Add(m.Value.Substring(m.Value.IndexOf(":") + 1));
      }
      return retVal;
    }
    public override string BuildInputParameterName(string paramName)
    {
      return ":" + paramName;
    }
    #endregion
  }
}
